Originally Posted by
oliver2002
Not so much Jeff, but the 'FlyAmerica' act which stipulates that it has to be ticketed with a UA codeshare number...
I know, but there's no reason they can't fix the clumsy system that requires the LH flight number for upgrade to clear. (I know it's Star, I actually mentioned it to Star people at the first Megado, over five years ago. They agreed it was an unintended problem).
Never had a problem redeeming the paper certs with UA flight numbers, many times -- in fact had a 100% success rate.